SCHOOLBOY psycho Josh Davies acted out the strangling of a girl for a laugh during breaktime.

The Facebook picture is one of a group still on display last night after “breakfast bet killer” Davies, 16, was convicted of murdering his ex-girlfriend.

The jury heard Davies had talked about battering Rebecca Aylward, 15. And another boy joked he would buy him a free cooked meal the following morning if he did it.

Davies bludgeoned her to death and later wrote on Facebook: “Good day with my friends and a lovely ­breakfast.” The sick teenager finished off the message with a little smiley face.

The website pictures show Davies larking around with pals at the school where he and Rebecca studied.

Most look like innocent youthful fun but the mock ­strangling fits the “murder obsessed” Davies described by close pals.

He battered Rebecca to death with a rock in woods last October.

The court heard she still “loved and trusted” him after he dumped her.

He asked her to meet him and she went along hoping they would be getting back together. Rebecca’s family revealed after the trial that she had bought new clothes for their Saturday afternoon date when he brutally snuffed out her life.

One of the pictures shows Davies smiling with his best friend – who he accused of carrying out the murder.

But Davies was convicted last week at the end of a five-week trial.

Afterwards the friend, 16, who cannot be named for legal reasons, posted a ­Facebook message: “He’s dead to me. My name was dragged through the dirt in court but it’s all over now.

“I’m looking to the future. The ­nightmare is over.” After Davies was found guilty the boy who made the “breakfast bet” with him, posted: “It’s over mate, been through all the s*** and come out the other side. “We just burst out cheering in court. I’m so happy. This is the best day of my life.”

Davies left crafty ­Facebook messages after killing Rebecca. He expressed concern that she was missing and told a friend: “I haven’t seen her but I’ve already spoken to her mother.”

Rebecca’s mum Sonia was frantically trying to find her. Davies knew her body lay in woods near Aberkenfig, Bridgend, when he posted: “Tell Sonia I’m off to bed soon, ring if she needs anything.”

The killer’s Facebook page was still online yesterday. The justice ministry confirmed Davies will not be able to access it while in a young offender institution awaiting sentence after his conviction at Swansea crown court.